/* Kaffee+ Flipbook – Viewer-Styles */
@font-face{font-family:"Courier Prime";font-weight:700;font-display:swap;src:url(fonts/courier-prime-latin-700-normal.woff2) format("woff2")}
@font-face{font-family:"Exo 2";font-weight:400;font-display:swap;src:url(fonts/exo-2-latin-400-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Exo 2";font-weight:400;font-display:swap;src:url(fonts/exo-2-latin-ext-400-normal.woff2) format("woff2");unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Exo 2";font-weight:600;font-display:swap;src:url(fonts/exo-2-latin-600-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+2000-206F,U+20AC}
@font-face{font-family:"Exo 2";font-weight:600;font-display:swap;src:url(fonts/exo-2-latin-ext-600-normal.woff2) format("woff2");unicode-range:U+0100-02AF,U+1E00-1EFF}
@font-face{font-family:"Exo 2";font-weight:700;font-display:swap;src:url(fonts/exo-2-latin-700-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+2000-206F,U+20AC}
@font-face{font-family:"Exo 2";font-weight:700;font-display:swap;src:url(fonts/exo-2-latin-ext-700-normal.woff2) format("woff2");unicode-range:U+0100-02AF,U+1E00-1EFF}

:root{
  --orange:#f06822;
  --orange-hi:#ff7a36;
  --ink:#16191b;
  --bar:#2a2e30;
  --bar-2:#33383b;
  --line:rgba(255,255,255,.09);
  --text:#f4f0ea;
  --muted:#a8a29a;
  --paper:#faf8f5;
  --paper-ink:#2a2e30;
  --font:"Exo 2",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"Courier Prime","Courier New",monospace;
  --top:56px;
  --bottom:64px;
  color-scheme:dark;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:var(--ink);color:var(--text);font-family:var(--font);-webkit-font-smoothing:antialiased}
body{overflow:hidden}
button{font:inherit;color:inherit}
a{color:inherit}
.sr-only{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- Topbar ---------- */
.topbar{position:fixed;inset:0 0 auto 0;height:var(--top);display:flex;align-items:center;gap:12px;padding:0 16px;background:linear-gradient(var(--bar),rgba(42,46,48,.94));border-bottom:1px solid var(--line);z-index:20}
.brand{display:flex;align-items:baseline;gap:10px;text-decoration:none;white-space:nowrap;min-width:0}
.brand__logo{font-family:var(--mono);font-weight:700;font-size:26px;letter-spacing:.5px;line-height:1;color:#fff;position:relative;padding-right:18px}
.brand__logo::after{content:"";position:absolute;right:0;top:-6px;width:16px;height:16px;background:
  linear-gradient(var(--orange),var(--orange)) center/16px 5px no-repeat,
  linear-gradient(var(--orange),var(--orange)) center/5px 16px no-repeat}
.brand__issue{font-size:13px;color:var(--muted);font-weight:600;letter-spacing:.04em;text-transform:uppercase}
.spacer{flex:1}
.tools{display:flex;gap:4px;align-items:center}
.btn{display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 12px;border:0;border-radius:8px;background:transparent;cursor:pointer;font-size:14px;font-weight:600;color:var(--text);text-decoration:none;transition:background .15s,color .15s}
.btn:hover{background:rgba(255,255,255,.08)}
.btn:focus-visible,.navbtn:focus-visible,.slider:focus-visible{outline:2px solid var(--orange);outline-offset:2px}
.btn svg{width:20px;height:20px;flex:none}
.btn[aria-pressed="true"],.btn.is-active{background:rgba(240,104,34,.16);color:var(--orange-hi)}
.btn--accent{background:var(--orange);color:#fff}
.btn--accent:hover{background:var(--orange-hi)}
@media (max-width:980px){.btn .lbl{display:none}.btn{padding:0 9px}}
@media (max-width:560px){.brand__issue{display:none}.tools .opt{display:none}.topbar{gap:4px;padding:0 8px 0 14px}}

/* ---------- Stage ---------- */
.stage{position:fixed;left:0;right:0;top:var(--top);bottom:var(--bottom);display:flex;align-items:center;justify-content:center;
  background:radial-gradient(ellipse 70% 60% at 50% 45%,#3a3530 0%,#24221f 45%,var(--ink) 100%)}
.stage::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.35;
  background:radial-gradient(circle at 50% 120%,rgba(240,104,34,.18),transparent 55%)}
.book-area{position:absolute;inset:18px 72px}
@media (max-width:700px){.book-area{inset:10px 8px}}
#book{width:100%;height:100%}
.page{background:var(--paper);overflow:hidden}
.page__inner{position:relative;width:100%;height:100%}
.page img{display:block;width:100%;height:100%;object-fit:cover;user-select:none;-webkit-user-drag:none;background:#efebe5}
.page img:not([src]){visibility:hidden}
.page__inner::before{content:"";position:absolute;inset:0;background:linear-gradient(110deg,#eee9e2 30%,#f8f5f0 50%,#eee9e2 70%) 0 0/300% 100%;animation:shimmer 1.4s linear infinite}
.page.is-loaded .page__inner::before{display:none}
@keyframes shimmer{to{background-position:-150% 0}}
.page__inner::after{content:"";position:absolute;inset:0;pointer-events:none}
.page.--left .page__inner::after{background:linear-gradient(to left,rgba(0,0,0,.18),rgba(0,0,0,0) 6%)}
.page.--right .page__inner::after{background:linear-gradient(to right,rgba(0,0,0,.16),rgba(0,0,0,0) 6%)}
.hot{position:absolute;display:block;z-index:3;border-radius:3px;transition:background .15s,box-shadow .15s}
.hot:hover,.hot:focus-visible{background:rgba(240,104,34,.14);box-shadow:inset 0 0 0 2px rgba(240,104,34,.65)}
body.show-links .hot{background:rgba(240,104,34,.12);box-shadow:inset 0 0 0 2px rgba(240,104,34,.55)}
.hot--big:hover{background:rgba(240,104,34,.05)}
.stf__parent{margin:0 auto}
.stf__block{filter:drop-shadow(0 22px 40px rgba(0,0,0,.55))}

.navbtn{position:absolute;top:50%;transform:translateY(-50%);width:52px;height:96px;border:0;border-radius:10px;background:rgba(255,255,255,.05);color:#fff;cursor:pointer;display:grid;place-items:center;z-index:5;transition:background .15s,opacity .2s}
.navbtn:hover{background:var(--orange)}
.navbtn svg{width:26px;height:26px}
.navbtn--prev{left:10px}.navbtn--next{right:10px}
.navbtn[disabled]{opacity:.15;pointer-events:none}
@media (max-width:700px){.navbtn{display:none}}

/* ---------- Bottom bar ---------- */
.bottombar{position:fixed;inset:auto 0 0 0;height:var(--bottom);display:flex;align-items:center;gap:14px;padding:0 18px;background:var(--bar);border-top:1px solid var(--line);z-index:20}
.pageinfo{font-variant-numeric:tabular-nums;font-weight:600;font-size:14px;min-width:92px;white-space:nowrap}
.pageinfo b{color:var(--orange-hi);font-weight:700}
.slider-wrap{flex:1;position:relative;display:flex;align-items:center}
.slider{-webkit-appearance:none;appearance:none;width:100%;height:6px;border-radius:3px;background:linear-gradient(to right,var(--orange) var(--p,0%),rgba(255,255,255,.14) var(--p,0%));cursor:pointer;margin:0}
.slider::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;border-radius:50%;background:#fff;border:4px solid var(--orange);box-shadow:0 2px 8px rgba(0,0,0,.4)}
.slider::-moz-range-thumb{width:12px;height:12px;border-radius:50%;background:#fff;border:4px solid var(--orange)}
.slider-tip{position:absolute;bottom:26px;transform:translateX(-50%);background:#fff;color:var(--paper-ink);padding:6px;border-radius:8px;box-shadow:0 10px 30px rgba(0,0,0,.5);pointer-events:none;opacity:0;transition:opacity .12s;text-align:center;font-size:12px;font-weight:700}
.slider-tip img{display:block;width:84px;height:119px;object-fit:cover;border-radius:3px;margin-bottom:4px;background:#eee}
.slider-tip.on{opacity:1}
.bottombar .btn{height:36px}
@media (max-width:560px){.bottombar{gap:8px;padding:0 10px}.pageinfo{min-width:70px;font-size:13px}}

/* ---------- Panels (Inhalt / Text) ---------- */
.panel{position:fixed;top:var(--top);bottom:var(--bottom);left:0;width:min(420px,100vw);background:var(--bar);border-right:1px solid var(--line);z-index:30;transform:translateX(-102%);transition:transform .28s cubic-bezier(.2,.8,.2,1);display:flex;flex-direction:column;box-shadow:20px 0 50px rgba(0,0,0,.35)}
.panel--right{left:auto;right:0;border-right:0;border-left:1px solid var(--line);transform:translateX(102%);width:min(560px,100vw)}
.panel.open{transform:none}
.panel__head{display:flex;align-items:center;justify-content:space-between;padding:16px 18px 12px;border-bottom:1px solid var(--line)}
.panel__head h2{margin:0;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:700}
.panel__body{overflow:auto;padding:8px 0 24px;flex:1;overscroll-behavior:contain}
.toc-sec{padding:14px 18px 4px;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--orange-hi);font-weight:700}
.toc-item{display:grid;grid-template-columns:1fr auto;gap:2px 14px;width:100%;text-align:left;padding:10px 18px;border:0;background:transparent;cursor:pointer;border-left:3px solid transparent}
.toc-item:hover{background:rgba(255,255,255,.05);border-left-color:var(--orange)}
.toc-item.is-current{background:rgba(240,104,34,.1);border-left-color:var(--orange)}
.toc-item strong{font-size:15px;font-weight:600;line-height:1.3}
.toc-item span{grid-column:1;font-size:13px;color:var(--muted);line-height:1.35}
.toc-item em{grid-row:1/span 2;grid-column:2;align-self:center;font-style:normal;font-family:var(--mono);font-weight:700;font-size:15px;color:var(--orange-hi)}

.reader{padding:6px 26px 30px;font-size:16px;line-height:1.65;color:#e9e4dc}
.reader h3{font-family:var(--mono);font-size:13px;color:var(--orange-hi);letter-spacing:.06em;margin:26px 0 8px;padding-top:14px;border-top:1px solid var(--line)}
.reader h3:first-child{border-top:0;margin-top:10px}
.reader p{margin:0 0 .8em}
.reader .empty{color:var(--muted);font-style:italic}

/* ---------- Overlays (Übersicht / Zoom) ---------- */
.overlay{position:fixed;inset:0;z-index:40;background:rgba(16,18,19,.97);display:none;flex-direction:column}
.overlay.open{display:flex}
.overlay__head{height:var(--top);display:flex;align-items:center;gap:10px;padding:0 16px;border-bottom:1px solid var(--line);flex:none}
.overlay__head h2{margin:0;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.grid{overflow:auto;padding:22px;display:grid;grid-template-columns:repeat(auto-fill,minmax(118px,1fr));gap:22px 16px;align-content:start}
.thumb{border:0;background:transparent;padding:0;cursor:pointer;text-align:center;color:var(--muted);font-size:12px;font-weight:600}
.thumb img{display:block;width:100%;aspect-ratio:595/842;object-fit:cover;border-radius:3px;background:#2b2b2b;box-shadow:0 6px 18px rgba(0,0,0,.45);transition:transform .15s,box-shadow .15s;margin-bottom:7px}
.thumb:hover img,.thumb:focus-visible img{transform:translateY(-3px);box-shadow:0 0 0 3px var(--orange),0 10px 24px rgba(0,0,0,.5)}
.thumb.is-current{color:var(--orange-hi)}
.thumb.is-current img{box-shadow:0 0 0 3px var(--orange)}
.zoomwrap{flex:1;overflow:auto;cursor:grab;touch-action:pan-x pan-y pinch-zoom}
.zoomwrap.drag{cursor:grabbing}
.zoominner{display:flex;justify-content:center;gap:0;padding:24px;margin:0 auto;width:max-content;min-width:100%}
.zoominner img{display:block;height:auto;background:#fff;box-shadow:0 10px 40px rgba(0,0,0,.6);user-select:none;-webkit-user-drag:none}
.zoomlvl{font-variant-numeric:tabular-nums;min-width:52px;text-align:center;font-weight:700;font-size:14px}

.toast{position:fixed;left:50%;bottom:calc(var(--bottom) + 18px);transform:translate(-50%,20px);background:#fff;color:var(--paper-ink);padding:10px 16px;border-radius:8px;font-weight:600;font-size:14px;opacity:0;transition:.2s;z-index:60;pointer-events:none}
.toast.on{opacity:1;transform:translate(-50%,0)}
.hint{position:absolute;left:50%;bottom:2px;z-index:6;white-space:nowrap;transform:translateX(-50%);font-size:12px;color:var(--muted);background:rgba(0,0,0,.35);padding:5px 12px;border-radius:20px;pointer-events:none;transition:opacity .6s}
.seo{display:none}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}